The Oldest Evidence for Human Habitation in the Baltic Region: A Preliminary Report on the Chronology and Archaeological Context of the Riadino-5 Archaeological Site.

We report the discovery of the oldest evidence for human presence in the southeastern Baltic Sea region. This paper presents an overview of the Riadino-5 archaeological site in the lower course of the Šešupė River (Kaliningrad Oblast of Russia) and direct infrared stimulated luminescence (IRSL) ages for the culture-bearing sediments from the site, which place the time of occupation well within the range of Marine Isotope Stage (MIS) 3 (ca 57-26 ka). Luminescence ages were determined using the multiple-aliquot additive-dose technique, applied to sand-sized potassium feldspar. Four of the six IRSL samples from the site come from the cultural deposits, while two are from the surrounding sediments. The luminescence age of the deposits implies that human occupation of the southeastern Baltic Sea region occurred at least between 50 ka and 44 ka during the first half of MIS 3 and the Middle-Upper Paleolithic. [ABSTRACT FROM AUTHOR]